Ardson



(No Model.) 3 Sheets-Sheet 1.

DE LASKI .T-. ULEMONS. POLISHVING MAGHIN-E.

No-.549,490. Patented No v 12,1895.

ANDREW EGRANAM. FHOTO-UTHQWASHINGTDN. D.C.

"(No Model.) v a Sh t DE LAS-KI T. OLEMONS. sheet 2 POLISHING MACHINE-No. 549,490. Patented Nov. 12,1895.

(No Model.) 3 Sheets-Sheet 3.

DE LASKI T. OLEJMONS. POLISHING MACHINE.

No. 5493190. v Patented Nov. 12, 1895.

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UNITED STATES PATENT OFFICE.

DE LASKI T. CLEMONS, OF HORNELLSVILLF, NEW YORK, ASSIGNOR OFTHREE-FOURTHS TO J. M. DEUTSCH, J. PEYTRENET, ANDJ. F. RICH- ARDSON, OFSAME PLACE.

POLISHING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 549,490, dated November12, 1895.

Application fil d January 24, 1895. Serial No. 536,117. (No model.)

To allwhom it may concern Beit known that 1, DE LASKI T. CLEMoNs, acitizen of the United States, residing at Hornellsville, in the countyof Steuben and State of New York, have invented certain new and usefulImprovements in Polishing- Machines, of which the following is'a specification, reference being had therein to the accompanying drawings.

In finishing the tops of tables, chiifoniers, sideboards, and otherarticles of furniture which are made of the choicer woods it isnecessary, in order to bring out the full beauty of the material used,to impart to these articles a high polish. This finish can only beproducedby laborious sandpapering, reducing, and rubbing down, all ofwhich processes if done by hand, are slow, tedious, and expensive. Toprovide means for accomplishing this work with celerity and to produceresults which are equal to those attained by hand-labor, but at muchless cost, machines have been devised, and it is to this class ofmachines that my invention relates.

My machine possesses asits chief characteristics a traveling frame, apolishing-pad swinging therefrom, suitable actuating mechanism, carriedby said frame to drive said polishing-pad, and means whereby theoperator controlssaid mechanism and pad.

In the drawings, Figure'l is a side view, partly in section, of myimproved machine. Fig. 2 is a rear view; Fig. 3 is a plan view. Figs. 4and 5 are detail views of the traveling driving gear-wheel. Figs. 6 and7 are side and plan views, respectively, of the reservoir for thepolishing compound. Figs. 8 and 9 are detail views of the sliding block,which carries the polishingpad. Fig. 10 is a detail view of one of thedepending brackets on the framein which the axles of the trucks aremounted showing the antifriction-bearing for the axle. Figzll is a view,partly in section, of the supporting rails, truck, and connecting-frameto show the adjustable collars for positioning the trucks and frame.Fig. 12 is an enlarged sectional view of the conical friction-pulley andits support to show the means for adjusting the pulley.

Referring to the drawings by letter, A denotes the stationary overheadrails on which the polishing apparatus is mounted, said rails havingribs a formed on their treads. Mounted upon these rails A are two trucksB, which roll thereon, the wheels on one side of the said trucks beingflanged to embrace a rib a, formed on the tread of one rail A, while thewheels on the opposite side of the truck are smooth and unflanged, theobject of this con struction' of rails and truck-wheels being that inthe event of the rails or trucks being slightly out of true there willbe no binding of the wheels, so asto interfere with the smooth travelingof the polishing-machine carried on the trucks, as would be the casewere the two sets of truck-wheels flanged. Resting on the axles of saidtrucks, but not secured thereto, is a frame, consisting of an upperrectangular portion 0, which has inclined depending arms 0 at its sides,and between which and suitable stops 0 on the under side of the frame 0the axles of the trucks B travel, ribs 0 c being formed on the underside of frame C, which rest upon the axles of the trucks B and form thebearings for the frame C.

In order that the frame 0 may always be maintained in a central positionbetween the rails A and the wheels of the trucks B, I provide theadjustable collars 19 (see Fig. 11,) which are secured to the axle b andbetween the outer beveled ends of which and the beveled endsv ofthewheel-hubs the ribs 0 on the frame C travel.

The axles b ofthe trucks B are connected by means of a frame B, and inbrackets depending from said frame are mounted antifriction-wheels 12which are in contact with the said axles, as shown more clearly in Fig.10. Said frame B is held in its central position by means of theadjustable collars 12 above referred to in connection with the travelingframe 0, the beveled inner ends of said collars abutting against thebrackets which support the frame B. Such means are necessary to preventsaid frame B from creeping sidewise on the axles of trucks B as theyrevolve, as in such case they would interfere with the frame 0 as it.-travels to and fro on the axles. At one side of the frame O, ator nearthe center thereof, are uprights D', 6X4 tending above said frame andjoined by horizontal cross-bars d to uprights D at the opposite sides ofsaid frame, the uprights D havin g depending inclined extensions D thevertical lower ends of which are joined by crossbars (1" to the lowerends of the uprights D. The structure just described comprises thesupporting-framework in which the driving and polishing mechanisms aremounted.

Journaled in suitable hangers a, depend ing from a frame E supported bythe rails A, is a shaft E parallel with said rails and of any desiredlength. At one end of said shaft E is mounted a flanged disk 0, splinedto the said shaft and movable thereon by means of a lever F, ph'oted tothe bracket from which the hanger 6 depends, said lever F being pivotedat its lower end. to a togglelever f. Opposed to said disk e is a secondsimilar disk 6, secured to a short shaft E supported in a hanger (0depending from the frame E. Said shaft E with its disk 6, slides in itsbearing toward and from disk 6, the movements of said shaft E and disk 6being controlled by the depending lever f, which is pivoted to thehanger (1. The lower end of lever f is connected to the toggle-lever fby a link It is apparent from the foregoing that these disks 0 and e aremoved toward and from each other as the lever f is thrown in onedirection or the other.

Mounted in bearings in the frame E at right angles to the shafts E and Eis a driving-shaft G, provided with a pulley 9, said pulley beingsplined to the shaft G (see Fig. 12) so as to be movable lengthwisethereof. G is a sleeve splined to the said shaft G so as to slidethereon and rotate therewith, the said sleeve being provided withafrictionpulley 5 arranged between the disks 6 and c. A sleeve G mountedin a bracket g on the under side of frame E, forms a bearing for theshaft G. Said sleeve is splined to its supporting-bracket g so thatwhile it is free to move lengthwise with its spline it is held againstrotating with the shaft G. Mounted on the inner end of said sleeve G isa conical friction-pulley ,which bears against the beveled edges ofdisks 6 and e, and in connection with friction-pulley drives saidbeveled disks. The object of mounting the conical pulley and arrangingsaid sleeve and driving-pulley 9 so that they are movable longitudinallyof the shaft G is to permit the conical friction-pulley to be adjustedrelative to the beveled disks 8 e. The required adjustment is secured bymeans of a nut g 011 the end of shaft G. The frietion-pulley g, carriedby the sleeve 1, is moved toward and from the centers of the disks 6 ande by means of a lever 1 which is pivoted to the frame E, the posit-ionof said friction-pulley 9 relative to the centers of said disks 2 and eregulating the speed at which the said disks will be driven, as will bereadily understood, the said disks 6 and 6 receiving motion from thefriction-pulleys g and so as to transmit motion from the shaft G to theshaft E when the lever f is moved in a direction to cause the said disksto be closed against the said friction-pulleys. In order to regulate thepositions of the friction-disk a relative to the drivingfrictionpulleys, I have provided an :uljusting-screw f which is tappedin the lever f and which screw abuts again st the short shaft E ,towhich the friction-disk c is secured.

The description immediately precedin covers the driving mechanism of mymachine, and I will now set forth the connecting mechanism between saiddriving parts and the polishing-pad and the polishing-pad itself.

The shaft E has fitted to it at diametrically-opposite points longitudi1ially-arranged wings or ribs Mounted on said shaft E and movablelengthwise thereof is a gearwheel II, which revolves in bearin on thetraveling frame 0, and mounted in the hub of this gear-wheel II aresmall disks or rollers h h, which rest on the wings or ribs e fitted tothe shaft E, and form means through. which a rotary motion is impartedto the gearwheel H from shaft E and at the same time act asantifriction-rollers to support said gearwheel II as it travelslengthwise of shaft E as the frame C, in which said gear-wheel II ismounted, is moved to the left or right 011 its supporting-rails A. II isa shaft journaled in bearings just above said gear-wheel ll, andsupported thereby and meshing with said gear-wheel II is a secondgear-wheel II. A fly-wheel and crank-wheel I is carried at the inner endof shaft ll in such position that it is about midway of the travelingframe (3. The wheel I is provided with a diametricallyarranged groovedrib 1 in which is adjustably secured a crank-pin i, to which is attachedone end of a pitman the other end of said pitman being pivotallyconnected to a lever K, pivoted at its upper end to brackets supportedby the horizontal bars (Z connecting the uprights D I), so that saidlever K is free to swing horizontally.

To the lower end of the lever K is attached one end of a connecting-rod7:, the other end of which is joined to a frame which carries thepolishing-pad 70 and which slides on a horizontal controlling-bar M. Thestroke of the said polishing-pad is regulated by adjust;- ing thecrank-pin. i in the grooved rib i. The frame 70 is provided at its lowerside with antifrietion-rollers 705, which are preferably provided withoil-cups M, which are in communication with the axles of said rollers.The rear end of said bar M is pivotally supported by a"ertically-adjustable block L placed between the uprights D, said barbeing held in said block L by means of a pin in, passing through a slotin in the bar. The polishingpad 7.3 has a universal joint connectionwith the frame 70.

The bar M is supported near its pivoted end by an adjustablespring-support m said spring-support normally raising the horizon talbar and its attached sliding block and polishing-pad from its operativeposition. It

will be seen that bar hi can be swung in a vertical plane on itspivot-pin m, and thus the polishing-pad can be raised from the work orpressed thereon at the will of the operator, who grasps the handpiece mat the outer end of the bar M without moving the traveling frame C. Anypressure to the right or left on the handpiece m will immediately imparta corresponding movement to the traveling frame with its supportedmechanism, and the,

' chine is at rest the feeding of the liquid'should cease. To effectthis result I provide a reservoir N, which is mounted on the slidingframe is by means of arms n and which has a concavo-convex bottom 01.Said reservoir is provided at each end with feeding-spouts n, which runto each end of the pad and deliver the polishing mixture. These spouts nare provided with controlling-valves m by means of which the flow ofliquid through them is regulated. In the top of the reservoir N is anopening 11 through which it can be filled.

It will be understood that owing to the curved shape of the bottom ofthe reservoir the liquid contained therein will be carried from one endof the reservoir to the other as the movements of the sliding block onwhich the reservoir is mounted are reversed, and the liquid will thus beforced out through each feeding-spout alternately and delivered in thepath of the pad.

Having described in detail my invention, I will briefly state theoperation. Power being applied to the driving-pulley g, the shaft G, onwhich the friction-pulley g is mounted, will be revolved, and saidfriction-pulley g having been adjusted to obtain the requisite speed thebeveled or flanged friction-disks e and 6, between which saidfriction-pulleys g and g are located, are forced toward each other bythe levers which control them until they are in contact with and receivemotion from the driving friction-pulleys. The beveled friction-disks inturn revolve the winged shaft E, which is mounted in fixed bearingsrelative to the supporting-rails, and it in turn drives the gear-trainmounted in the traveling frame which is carried by the trucks on thestationary supporting-rails. The geartrain through the fly-wheel andpitman swings the vertical lever K, which is hung from the travelingframe, and said vertical lever through its connecting-rod reciprocatesthe sliding frame K and its polishing-pad. The movements of thepolishing pad are controlled at will by the operator by means of thehorizontal controlling-bar M, on which the sliding frame is mounted, andthe position of the rolling frame in which the polishing mechanism ismounted is also regulated by a side pressure of the said horizontalcontrolling-bar.

It will be understood that my improved machine maybe used not only forsandpapering, rubbing, and polishing furniture and the like, but alsofor polishing stone, metal, or any other material to which it is desiredto impart a fine finish.

Having thus described my invention, I claim and desire to secure byLetters Patent 1. In a polishing machine, the combination withsupporting rails, of a traveling frame mounted thereon, a shaftextending parallel to said rails, a stationary frame, mechanism, mountedin said stationary frame, for rotating said shaft, a polishing padcarried by said traveling frame and movable in a plane at right anglesto the path of movement of the latter, and mechanism, carried by saidtraveling frame and operated by said shaft, for giving a horizontalreciprocating movement to said polishing pad.

2. In a polishing machine, the combination with overhead supportingrails, of trucks the wheels of which run upon said rails, a frameloosely mounted on the axles of said trucks, a swinging lever carried bysaid frame, a polishing pad operated from said swinging lever and havinga plane of movement at right angles to the traveling movement of saidframe, a crank wheel operatively connected with said swinging lever, adriving gear wheel mounted in said frame and having a geared connectionto said crank wheel, a shaft arranged parallel to the said rails andconnected to said driving gear wheel to rotate the latter whilepermitting a movement of said wheel longitudinally of said shaft, and adriving mechanism for said shaft.

3. In a polishing machine, the combination with a polishing pad, of areservoir or receptacle, for the polishing mixture, which is movablewith said pad, and feeding spouts at each end of said reservoir, throughwhich the polishing mixture is fed, alternately, to the surface beingpolished, as the polishing pad is reciprocated.

4. In a polishing machine, the combination with the reciprocating frameIt and the polishing pad carried thereby, of the reservoir or receptacleN attached to said frame and provided at its opposite ends with spouts11., said receptacle having a curved bottom so that the polishing liquidtherein will be forced outward through the said spouts alternately asthe movements of the said frame are reversed.

5. In a polishing machine, the combination with the overhead rails A, ofthe trucks B running on said rails, the traveling frame loosely mountedon the axles of said trucks,

a swinging lever carried by said frame, a polishing pad connected tosaid swinging lever, driving mechanism for said swinging lever mountedon said frame, the shaft E extending parallel with the said rails andhaving a splined connection with a driving gear wheel forming part ofthe driving mechanism for said lever, and a driving shaft and suitableconnections for rotating said shaft E.

6. In a polishingmachine, the combination with the rails A, a travelingframe mounted thereon, a polishing pad arranged to be reciprocated in aplane transverse to the travelin g movements of said frame,drivingmechanism carried by said frame forreciprocating said pad, theshaft E arranged parallel with said rails, and which operates saiddriving mechanism, the driving shaft G, the friction pulley g rotatingwith said shaft, the conical friction pulley g rotating independently ofsaid shaft, the friction disks 6 and 6 constructed to be moved towardand from each other, the levers F and f, the link f and the toggle leverf by means of which said friction disks may be forced in contact withthe said friction pulleys.

7. In a polishing machine, the combination with the rails A, a traveling frame mounted thereon, a reciprocating polishing pad, and mechanismcarried by said traveling frame for operating said pad, of the shaft Efor driving said mechanism, the friction disk 6 splined to said shaft tobe moved lengthwise thereof, the shaft E longitudinally movable in itsbearing, the friction disk 6 carried by said shaft E the levers F and f,the link f and toggle lever f for forcing said friction disks towardeach other, and the driving shaft G provided with suitable frictionpulley for rotating said friction disks.

8. In a polishing machine, the combination with the driving shaft G, ofthe sleeve G splined to said shaft soas to slide thereon and rotatetherewith and provided with the drivingfriction pulley g, the conicalfriction pulley g loosely mounted to rotate independently of said shaftG, the friction disks 6 and e between which the said friction pulleys gand are mounted, the lever g for moving the said sleeve G to vary theposition of the friction pulley 9 relative to the said friction disks,the shaft E to which the said friction disk 6 is operatively connected,the rails A, a traveling frame mounted on said rails, a polishing padconnected to said frame, and mechanism carried by said frame, andoperated by said shaft E, for imparting a reciprocating movement to thesaid polishing pad.

9. In a polishingmachine, the combination with the rails A, a travelingframe mounted on said rails, a polishing pad connected with saidtraveling frame and operating mechanism for said pad carried by saidframe, of the shaft E placed parallel to the said rails and having theribs or wings 6 the driving gearwheel H through which said shaft passesand which forms part of the operating mechanism for said polishing pad,an d anti-friction wheels h and h mounted in the hub of said gear wheelII and having a rolling contact withthc said ribs or wings of the saidshaft E.

10. In a polishing machine, the combination with the rails A and thetrucks ]3 running thereon, of a frame 0 loosely mounted on the axles ofsaid trucks and forming part of the frame work which supports thepolishing devices and the operating mechanism for the same, and theframe 13 connecting the axles of said trucksand provided withantifriction wheels U which are in contact with the said axles.

11. In a polishing machine, he combination with the sliding frame Ir.and its operating mechanism, of the polishing pad k carried by saidframe, the pivoted controlling bar M on which the said frame slides andthe adjustable spring support on which the said controlling bar rests,said support being arranged between the pivotal point of said bar andits outer end.

12. In a polishing machine, the combination with the supporting rails A,of trucks l; traveling on said rails, the frame 0 loosely mounted on theaxles of said trucks and the adjustable collars b on the truck axles tokeep said frame 0 in a central position between the rails A.

13. In a polishing machine, the combination with the supporting rails A,of the trucks B traveling on said rails, the frame 0 loosely mounted onthe axles of the trucks within the rails A, the second frame Bconnecting the truck axles and maintaining the trucks in their relativepositions on the rails A, and the adjustable collars h on the truckaxles, said collars keeping the frames 0 and B in their relativepositions with respect to the supporting rails and each other.

11. In a polishing machine, the combination with the supporting rails A,of a frame C movable thereon, polishing mechanism carried thereby, adriving shaft E for said mechanism mounted in fixed hearings in closeproximity to the path of said traveling frame O, a beveled friction disk0 splined to one end of said shaft E, a second similar disk 12 mountedon a rotating shaft in close relation to said disk 6, means for movingsaid disks toward and from each other, a shaft G mounted transversely tosaid shaft E and occupyin g a central position between the disks 6 ande, a friction. pulley g rotating with said shaft G and movablelengthwise thereof, a conical friction pulley mounted to rotateindependently of shaft G, said pulleys g, engaging the friction disks 0,0 when the latter are forced together, and means for adjusting saidconical pulley to take up wear.

In testimony whereof I affix my signature in presence of two witnesses.

DE LASKI T. CLEMONS.

Vitnesses v A. C. \VARRINER, JOHN G. TRENKLER.

